Autograph Letter Signed, to C.W.Cooke, thanking him for the “spendid and high scientific article” and referring to his own light. 2 pp. 8 x 5 inches, in good condition. 4 Princes Street, London, 16 June 1879. “I can not find words to thank for the manner in which you have done justice to my light.” Richard Werdemann, electricity pioneer. We have discovered the following reference in Nature (7 November 1878): The Werdermann Electric Light: While the world is waiting for the announcement of Mr. Edison’s method of splitting up the electric light, Mr. Richard Werdermann, a gentleman well known in connection with electric lighting, seems to have solved the problem, to some extent, at least, and he believes that after further experiments he will be able to divide the current into 50, 100, or even 500 lights. Experimental exhibitions of the light have been given with satisfactory results at the works of the British Telegraph Manufactory, Euston Road.